Lobelia siphilitica L.
Great Blue Lobelia
Habitat: Rich, low woods and swamps.
Range: Maine and western New England to Manitoba and Colorado, south to North Carolina and Texas.
Phenology: Flowers late August to September.
Synonyms: Represented in Maine and New England by var. siphilitica. No synonyms noted.
Known Distribution in Maine: This rare plant has been historically documented from a total of 3 town(s) in the following county(ies): Aroostook, Cumberland, Sagadahoc.